3 years ago

The product of the roots of 8x2 - 2x = 1 is: -1/8 1/8

Mathematics

2 answers:

Ivahew [28]3 years ago

4 0

Answer:

1/8

Step-by-step explanation:

ioda3 years ago

4 0

Answer:

-1/8

Step-by-step explanation:

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20x^2-30=4x solve for x

ankoles [38]

Answer:

x=1.3288 or -1.1288

Step-by-step explanation:

Given $20x^{2}-30=4x$

Subtract 4x from both sides

$20x^{2}-4x-30=0$

Since we can factor out 2 from whole equation, let's factor out 2.

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Divide with 2 on both sides

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$x=\frac{2\pm\sqrt{2^{2}-4X10X(-15)} } {2X10}$

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Can anyone start me off on this? its trigonometric ratios

Alexxx [7]

Answer:

The angle is about 30.27 degrees.

Step-by-step explanation:

Use the trig ratio cosine because you are given the adjacent leg and the hypotenuse.

$cos^{-1} =19/22$

Plug into a calculator

Rounded to the nearest hundredth the angle is 30.27 degrees.

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